forked from qt-creator/qt-creator
719f51445e
The pure LSP-based implementation is too inflexible with regards to activation characters. Change-Id: I386a60b80f59e1b48254d55c2a47f1a1ffe1f97f Reviewed-by: David Schulz <david.schulz@qt.io>
124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2018 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#pragma once
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#include "languageclient_global.h"
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#include <languageserverprotocol/completion.h>
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#include <texteditor/codeassist/completionassistprovider.h>
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#include <texteditor/codeassist/iassistprocessor.h>
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#include <utils/optional.h>
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#include <QPointer>
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#include <functional>
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namespace TextEditor {
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class IAssistProposal;
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class TextDocumentManipulatorInterface;
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}
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namespace LanguageClient {
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class Client;
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using CompletionItemsTransformer = std::function<QList<LanguageServerProtocol::CompletionItem>(
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const Utils::FilePath &, const QString &, int,
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const QList<LanguageServerProtocol::CompletionItem> &)>;
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using CompletionApplyHelper = std::function<void(
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const LanguageServerProtocol::CompletionItem &,
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TextEditor::TextDocumentManipulatorInterface &, QChar)>;
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using ProposalHandler = std::function<void(TextEditor::IAssistProposal *)>;
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class LANGUAGECLIENT_EXPORT LanguageClientCompletionAssistProvider
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: public TextEditor::CompletionAssistProvider
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{
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Q_OBJECT
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public:
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LanguageClientCompletionAssistProvider(Client *client);
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TextEditor::IAssistProcessor *createProcessor() const override;
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RunType runType() const override;
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int activationCharSequenceLength() const override;
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bool isActivationCharSequence(const QString &sequence) const override;
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bool isContinuationChar(const QChar &) const override { return true; }
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void setTriggerCharacters(const Utils::optional<QList<QString>> triggerChars);
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void setProposalHandler(const ProposalHandler &handler) { m_proposalHandler = handler; }
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void setSnippetsGroup(const QString &group) { m_snippetsGroup = group; }
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protected:
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void setItemsTransformer(const CompletionItemsTransformer &transformer);
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void setApplyHelper(const CompletionApplyHelper &applyHelper);
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Client *client() const { return m_client; }
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private:
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QList<QString> m_triggerChars;
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CompletionItemsTransformer m_itemsTransformer;
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CompletionApplyHelper m_applyHelper;
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ProposalHandler m_proposalHandler;
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QString m_snippetsGroup;
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int m_activationCharSequenceLength = 0;
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Client *m_client = nullptr; // not owned
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};
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class LANGUAGECLIENT_EXPORT LanguageClientCompletionAssistProcessor
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: public TextEditor::IAssistProcessor
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{
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public:
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LanguageClientCompletionAssistProcessor(Client *client,
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const CompletionItemsTransformer &itemsTransformer,
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const CompletionApplyHelper &applyHelper,
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const ProposalHandler &proposalHandler,
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const QString &snippetsGroup);
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~LanguageClientCompletionAssistProcessor() override;
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TextEditor::IAssistProposal *perform(const TextEditor::AssistInterface *interface) override;
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bool running() override;
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bool needsRestart() const override { return true; }
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void cancel() override;
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private:
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void handleCompletionResponse(const LanguageServerProtocol::CompletionRequest::Response &response);
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QPointer<QTextDocument> m_document;
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Utils::FilePath m_filePath;
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QPointer<Client> m_client;
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Utils::optional<LanguageServerProtocol::MessageId> m_currentRequest;
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QMetaObject::Connection m_postponedUpdateConnection;
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const CompletionItemsTransformer m_itemsTransformer;
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const CompletionApplyHelper m_applyHelper;
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const ProposalHandler m_proposalHandler;
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const QString m_snippetsGroup;
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int m_pos = -1;
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int m_basePos = -1;
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};
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} // namespace LanguageClient
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